Abstract: With the emergence and development of blockchain technology，it is gradually applied to various fields.It is necessary to apply blockchain technology to agricultural field to reduce restrictive factors of agricultural development，solve bottleneck existing in agricultural development，and improve level of agricultural informatization and modernization with promotion of digital countryside，digital agriculture and intelligent agriculture.But，current application of blockchain technology in agriculture is still not mature.It is necessary to strengthen application research of blockchain technology in agriculture.Concept and characteristics of block chain technology was analyzed.Application significance and bottleneck of block chain technology in agriculture was discussed.Application countermeasures of block chain technology in agriculture was explored.